JET Filter Replacement Kit for Engine Fuel Pumps
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Solution Overview
Problem
The JET filter in engine fuel pumps is often difficult to replace due to its inaccessible location, and conventional tools risk introducing metallic particles into the injection system.
Innovation Solution
A kit comprising an extractor and a pushing rod, along with a centering guide, is designed to facilitate the removal and installation of the JET filter, ensuring safe and efficient access by cooperating with the fuel pump's cavity to avoid introducing metallic particles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If conventional tools are used to replace the JET filter, then the filter can be removed and installed, but metallic particles may be introduced into the injection system
Solution Approach 1:
A specialized extraction tool with a magnetic tip is introduced as an intermediary between the operator and the JET filter. The magnetic tip selectively attracts and removes metallic particles from the filter surface during extraction, preventing their introduction into the injection system while enabling filter replacement
2Reliability
If the JET filter is placed in a position close to the actuator, then it effectively filters impurities, but it becomes hardly accessible by conventional tools
Solution Approach 1:
The extraction tool is segmented into distinct functional components: a handle for operator grip, a shaft for reaching into the fuel pump cavity, and a magnetic tip for filter engagement and particle attraction. This segmentation allows the tool to navigate the confined space while performing multiple functions
Solution Approach 2:
The tool design transitions from two-dimensional conventional wrenches to a three-dimensional specialized instrument that can be inserted through the fuel pump cavity opening, accessing the JET filter from a different spatial dimension and direction
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The kit allows for safe and efficient extraction and installation of the JET filter, preventing contamination of the injection system and reducing the risk of metallic particle introduction, thereby maintaining the fuel pump's functionality.
Implementation Method 1
a magnetic tip shaped to extract the JET filter and metallic particles from the fuel pump
Data Source
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AI summary
A kit for replacing a JET filter (3) arranged in an engine fuel pump (1), the kit comprising at least one between an extractor (10) for extracting said JET filter (3), or a pushing rod for fitting a JET filter (3) in the engine fuel pump (1), or a centering guide (32) shaped to cooperate with the extractor (10) or the pushing rod.